And beyond measurements, and beyond patterns on paper, it still comes down to how the gun performs in your hands.
I have an AyA number 2 in 20 gauge, .007 and 021 chokes, which I think produces perfect upland game patterns, I just can't put the pattern where it needs to be.
In contrast, I have an Italian hammer double 12 by Armi San Marco, a very humble gun, choked .015 and. 025, which I think a tad tight, but the gun works for me. I think I am a little slower mounting the gun, and maybe more consistant in the mount.
Ultimately, measurements and patterns are only a hint towards performance in practical terms. Just my 2 cents worth.
